Eyeglasses.



H. NEWBOLD.

EYEGLASSES.

APPLICATION FIILED my 13. 191 0.

1.; l?6,920. Patentml Mar. 28, 1916.

WI TNESSES: llV VE N TOR M HflRRY NEWBOLD A TTORNEY THE COLUMBIAPLANopRAPu co..-- WASHINGTON, u. c;

HARRY NEWBOLI), or LONDON,

PANY, or SOUTHBRIDGE,

ENGLAND, ASSIGNOR TO AMERICAN OPTICAL COM- MASSACHUSETTS, A CORPORATIONOF MASSACHUSETTS.

EYEGLASSES.

To all whom it mdycmwem: j

Be it known that I, HARRY NEWBOLD, a subject of the King, of GreatBritain, and resident of London, England, have invented certain new anduseful Improvements in Eyeglasses, of which the following is aspecification.

My invention relates to certain improvements in eyeglasses, andlmoreparticularly to that form of eyeglass in which there are employed springactuated nose clamps or guards pivoted adjacent to the opposite ends ofthe bridge connecting the lenses of the eyeglass.

The object of my improvement is to provide means for limiting orrestricting the travel of the nose clamps toward the nose of the wearer,so that the clamps may be adjusted to engage the nose with sulficientpressure to hold the eyeglasses in place without subjecting the nose tothe usual unrestrained pressure of the actuating spring.

It has been found in the use of eyeglasses employing spring actuatednose clamps, that the constant unrestricted pressure of the spring willindent the flesh at the side of the nose and cause the wearerconsiderable discomfort and pain. My improvement is designed to relievethis constant pressure by limiting the travel of the clamp with respectto the nose. The clamp is permitted to engage suflicient of the flesh tosupport the eyeglasses in place but all further movement is restricted.Each of the limiting and re stricting devices illustrated in thedrawings interposes an adjustable stop in the path of the actuatinglever, the stop co-acting be-- tween the actuating lever and the lensmounting or connecting structure.

Figures 1 and 2 show a plan view and a front elevation wherein themovement of the actuating lever is restricted and adjusted by bendingback the outer end of the actuating lever so that it may abut the lensholding structure. Figs. 3 and 4 are a plan view and a side elevationwherein the movement of the actuating lever is restricted and adjustedby means of a loop of pliable material secured to the actuating lever inthe rear of the pivot and abutting the structure connecting the twolenses, the loop extendlng across the top of the lever. Figs. 5 and 6are a plan view and a side elevation showing a modification of thestructure shown in Figs. 3 and 4, the loop of pllable materialSpecification of Letters Patent.

lever instead of on top.

eferring to the drawings, the lenses 1 are held in alinement in'theusual manner by the clips 2 and the cross member or bridge 3. The clamplevers 4 are pivoted adjacent the opposite ends of the bridge 3 andactuated by springs 5 in the usual manner, the outer end of the. levers4 being bent around and adapted for use as handles or finger pieces foroperating the levers.

being on the under side of the actuating To limit the movement of thenose engaging ends of the clamp levers toward each other, an adjustablestop 6 is interposed between the movable lever 4 and the fixed structureholding the lenses in alinement. The stop may be secured to or engagethe lever arm either in front of or to the rear of the pivotal point ofthe lever arm, and it is apparent that its operation is equallyeffective when secured to the lens attaching structure as when securedto the movable lever arm, the positions being interchangeable. It isalso apparent that various forms of structure other than the metallictongue can be employed to restrict the move- 'ment of the lever;therefore, I do not wish to be limited to the forms shown, the saidforms having been selected for convenience of description in thisspecification.

The stops are adjusted as follows: The nose clamps are adjusted to thenose of the wearer in the usual manner. The handles or finger pieces ofthe levers 4 are next drawn slightly toward each other, so that theinward pressure of the actuating springs against the nose is relieved,but suflicient contact is left with the flesh of the nose to support andhold the eyeglasses in place. The stops 6 are then set so that theyengage the lens attaching structure and the movement of the leverstoward the nose limited and fixed. Adjustment of the tongue or loop ismade by bending the tongue with pliers or other instruments until therequired distance between the lever and lens attaching structure isassumed.

It will be seen that by the use of my invention the injurious andpainful pressure of spring actuated nose clamps may be relieved, and thedesired contact with the nose readily and quickly fixed or adjusted.

I am aware that previous to my invention the travel of the nose clamplevers has been limited to a fixed are for convenience of Patented Mar.28, 1916,.

- Application filed July 13,1910. Serial No. 571,824.

manipulation, by means of a fixed contact point between the levers andthe lens attaching structure, but I am not aware, and do not believethat adjustable stops interposed in the paths of the levers for thepurpose of restricting and controlling the pressure of the clamps on thenose have ever been used 7 reversely bent upon itself, and extendinginto engagement with the support, whereby twisting of the finger "6rbending of the loops therein serves'to adjust the same to limit theinward movementof the jnose bearing portion of the lever. 1

2. In eyeglasses, in combination, a support, a guard lever pivotedthereon,a pliable finger arranged on said lever for engagement with thesupport, said finger being bent ,upon itseli whereby twisting or bendingof the loop formed by the reverse bend of the finger serves to. adjustthe finger to vary the movement of the arm inone directlOli. v, Intestimony whereof, I afiix my signature in the presence oftwo witnesses,V

JAMES PRICE PETHERIGK, HARRY ARTHUR Arson.

Copies of this patent may be obtained for five cents cash, by addressingthe, fcognmi ssioner o1 lgt'ents.

Washington, D. G."

